2003 Mercury Mountaineer

JTELLEZ

MEMBER

1 POST

2003 MERCURY MOUNTAINEER

2003 Mercury Mountaineer V8 All Wheel Drive Automatic

My suv feels shaky when it's in the drive position and I am stopped at a stop light. When I go 50mph or over it starts to shake even more. The check engine light was blinking on and off but not any more. Can someone tell me what this might be.

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Wednesday, August 26th, 2009 AT 7:37 AM

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SERVICE WRITER

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You probably have a misfire. There is fuel that is not being burned and getting into the cat. The cat can ignite the fuel and heat it up to much and break it down.

IF the the light flashes, the chance of damage increases dramatically. You can kill the cat by continueing to drive like this.